Radiation
- Radiation dose is presented below as dose area product, with three
histograms each with colouring based on a separate factor, namely the
device used, the type of fEVAR and the number of planned
fenestrations:
## Warning: Removed 2 rows containing non-finite values (stat_bin).

## Warning: Removed 2 rows containing non-finite values (stat_bin).

## Warning: Removed 2 rows containing non-finite values (stat_bin).

- From the above histograms, three fenestrated cuff procedures have
resulted in two dose outliers.
- They are therefore excluded from the summary statistics below.
- Firstly, DAP distribution but this can be tested by Shapiro Wilk
normality test with the null hypothesis that the DAP data are normally
distributed. p = 0.18 (ie. they are normally distributed).
- Summary DAP statistics are shown below:
| Minimum DAP |
2461 |
| Maximum DAP |
35892 |
| Mean DAP* |
16000 |
| Standard deviation* |
8000 |
- *Mean and standard deviation have been rounded to the nearest
thousand.